Pen



May 28, 1940.

Fi1ed Nov. 28 1938 T'he penS herein desolibed are eSpeoiaHy llSefl11 for the drang of relatively thick lineS and by reaSon of the contTol over the fiow of ink exer oised by the capillary passageS, overoon1e the diS advantageS of the penS hitherto plaoed on the nlaTket to serve that pufposem TT1e Inethod of n1anufactUring these penS is con1paratively Sin1ple. In n1ost cases a pen Inay be Inade by plaloing al suitab1e piece of mea1 i11to die preSs shaping it and folding the shaped piece so that aJ oapillary passage oI passages and con tact suIface oI' S11TfajceS ae thereby forn1ed.

It iS of couSe alSo posSible to make theSe pens ha Tings which aTe brooght together b the folding opeTation.

t is to be underStood that the soope of Iny invention is not to be lin1ited to the Inodinoations speoiiically set foTth in the present Speoication bLlt inoludes a11 Inodioations Which are baSed on the saIne pTinciple and otheTvvise con1e vvithin the Spirit of this disclosure.

1. pen con1pTising a TeseTvoir, a Ting-Shaped oontaot area and capillaTy pasSages leading fron1 Said Teservoir to Said oontact aTea, the tota1 area of said passages being lesS than that of the ling-shaped oontact area.

2. .A pen ooInpTising a TeSeTvoir, a ring-shaped oontaot aTe3 and tvvo copinary paSSageS leading ffo111 SaJid feseTvoi1 to Salid oontact aTea, the tota1 aTea of said tWo passages being lesS than thot of the ring-shaped oontact area.

3. A one-piece Tneta1 pen conlprising a reservoi1 a TingShaped contact area and tWo capillaTy pasSages leading fToIn said reservoiI to said coI1 taot areaJ, the tota1 area of Said two passages being less than that of the ringshaped oontact area.

. A pen coInpTiSi1g a reseTvoir, aJ ciroular,

4 fing-shoped oontact area and two SepaTated l capiHaTy paSSages leading fron1 said reservoir to said oiroulaI' contaot area, the total aTea of said two pasSages being less than that of the circular oontact area.

5. A pen cooprising a reseTvoir, a Tectangu1or, Ti1g-shaped contaot aTea and tvo separated capinary paSSages leading fron1 Said reservoir to saJid reotangular contaot area, the total area of Said tWo paSSages being lesS than that of the feotangular oontact area.

6. A pen oonzpTising a resefvoiT, a Hnear oon tact area and tvVo capillary passages leading fron1 said I'eseI'voi to said 1ineaI oontaot area, the tota1 area of said tvvo paSSages being leSS than that of the linear oontact area.

BNST A. WIBGMAN. 

